Phase Data
6 JAN 2011 ( 6)
ot = 20:57:11.34 +/- 1.95 TONGA
lat = -15.668 +/- 9.2
lon = -174.313 +/- 18.0 MAGNITUDE 4.9 (GS)
dep = 130.5 +/- 8.6
70 km (40 miles) WNW of Hihifo, Tonga (pop 2,000)
330 km (205 miles) SE of MATA'UTU, Ile Uvea, Wallis and Futuna
610 km (380 miles) N of NUKU`ALOFA, Tonga
2580 km (1600 miles) NNE of Auckland, New Zealand
nph = 25 of 25 se = 0.96 FE=173 A
error ellipse = (117.0, 9.0, 31.2;248.0, 75.0, 12.4; 25.0, 10.0, 2.4)
mb = 4.9 ( 18) ML = 4.7 ( 2) mblg = 0.0 ( 0) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
AFI ePn 20:57:58.08 -0.1 3.0 55 L:4.6+0 1.0 4.8 AFI
URZ eP 21:02:10.75 -0.8 23.7 197 b:3.5+1 .60 5.0 URZ
HIZ eP 21:02:21.46 1.4 24.7 201 b:6.5+1 .78 5.2 HIZ
THZ eP 21:02:51.54 -0.6 28.3 201 b:6.6+2 2.6 5.8 THZ
OXZ eP 21:03:04.61 -2.4 29.9 200 b:5.3+2 2.4 5.8 OXZ
WHZ eP 21:03:39.69 0.6 33.6 203 b:5.0+1 .66 5.4 WHZ
COEN eP 21:04:44.72 2.1 41.1 267 b:2.4+1 .95 4.9 COEN
STKA eP 21:04:58.72 -0.4 43.1 240 b:3.8+0 .90 4.1 STKA
BBOO eP 21:05:36.57 -0.1 47.9 240 b:1.9+1 .80 4.9 BBOO
WRAB eP 21:05:44.68 0.2 48.9 257 b:1.9+1 1.0 4.8 WRAB
AS01 eP 21:05:46.34 0.0 49.1 252 AS01
SOEI eP 21:07:06.28 1.2 60.0 268 b:2.7+1 .80 5.3 SOEI
VNDA eP 21:07:24.52 0.6 63.0 186 VNDA
JAGI eP 21:08:07.75 -2.0 70.1 267 b:4.9+1 1.0 5.3 JAGI
GMRC eP 21:08:41.13 2.8 74.9 47 GMRC
TNA eP 21:09:11.96 0.3 81.1 3 b:8.2+0 .84 4.5 TNA
RND eP 21:09:12.77 0.2 81.3 11 b:1.2+1 .92 4.7 RND
MCK eP 21:09:13.39 -0.6 81.6 11 b:1.8+1 .88 4.8 MCK
MLY eP 21:09:17.61 -1.0 82.4 10 b:8.3+0 1.2 4.4 MLY
WRH eP 21:09:17.81 -0.5 82.4 11 b:1.3+1 .92 4.7 WRH
CCB eP 21:09:18.97 -0.4 82.6 11 b:1.1+1 .72 4.8 CCB
IL1 eP 21:09:20.44 -0.5 82.9 12 IL1
MDM eP 21:09:20.47 0.0 82.8 11 b:1.6+1 1.2 4.7 MDM
BW06 eP 21:09:20.71 -1.9 83.1 42 BW06
CM01 eP 21:10:07.19 1.9 91.8 288 CM01
Generated 2011 JAN 6 at 21:16 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
